# Data Source & Integrations

Connect data sources, map and import contacts and events, and keep them in sync.

**Language:** en
**Audience:** platform
**Translation key:** platform.integrations
**Search keywords:** data source, integration, import, sync, merge, mapping, contacts, events, connector, phone format
**Related pages:** /platform/es/integrations, /platform/en/overview
**Help Center:** https://help.instasent.com/en/collections/3687204-data-source-integrations

A data source feeds contacts and events into your audience. These guides cover how the merge system works, mapping and formatting your data, phone-number format, key fields, tags, and connecting, reconnecting or removing sources.

## Guides

- [How the merge system works](https://help.instasent.com/en/articles/6682905-how-the-merge-system-works)
- [Introduce and map my data](https://help.instasent.com/en/articles/6680324-introduce-and-map-my-data)
- [Data format and attributes](https://help.instasent.com/en/articles/6680343-data-format-and-attributes)
- [What kind of activity can I see in a data source?](https://help.instasent.com/en/articles/6693347-what-kind-of-activity-can-i-see-in-a-data-source)
- [What is the correct format for international phone numbers?](https://help.instasent.com/en/articles/6909441-what-is-the-correct-format-for-international-phone-numbers)
- [What 'Key Field' means?](https://help.instasent.com/en/articles/6911751-what-key-field-means)
- [How to create Tags when importing contacts?](https://help.instasent.com/en/articles/6682497-how-to-create-tags-when-importing-contacts)
- [How to delete a single contact](https://help.instasent.com/en/articles/8489631-how-to-delete-a-single-contact)
- [How to add unsubscribed contacts](https://help.instasent.com/en/articles/6683789-how-to-add-unsubscribed-contacts)
- [How to reconnect a Data Source](https://help.instasent.com/en/articles/6693305-how-to-reconnect-a-data-source)
- [How to delete a Data Source](https://help.instasent.com/en/articles/6693309-how-to-delete-a-data-source)
- [How data synchronization works with connectors](https://help.instasent.com/en/articles/9909411-how-data-synchronization-works-with-connectors)

[Browse all 51 guides in the Help Center →](https://help.instasent.com/en/collections/3687204-data-source-integrations)